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Author: search.filters.author.Guduk, MustafaSubject: search.filters.subject.Case report

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    Shunt Valve Rupture in Ventriculoperitoneal Shunt Failure
    (ELSEVIER SCIENCE INC, 2021-01-01) Guduk, Mustafa; Akbas, Ahmet; Tuzunalp, Muruvvet Ayten; Berikol, Gurkan; Eksi, Murat Sakir
    BACKGROUND: Shunt complications are common despite advances in surgial techniques and shunting technology. Proximal and/or distal catheter malfunctions are detected in pediatric and adult patients. However, valve dysfunction is rare in such cases. CASE DESCRIPTION: A 24-year-old woman presented with a history of veotriculostomy and ventriculoperitoneal shunt (VPS) secondary to hydrocephalus concomitant with Dandy-Walker syndrome. She has had undulant headache and vision loss episodes in both eyes for 15 days. Her VPS valve was normal when manually checked, and the VPS was observed as intact on x-ray and computed tomography scan. She had high-grade papilledema in both eyes with an optical coherence tomography scan value of 55/99. Lumbar puncture was performed. Cerebrospinal fluid opening pressure was 560 mm H2O under sedation. VPS exploration surgery was performed. There was a tiny defect over the shunt valve from where clear cerebrospinal fluid was leaking. We revised the old VPS valve with a new valve of 1.5 regular pressure. Her vision improved shortly after the surgery. CONCLUSIONS: This case is a very rare example of shunt valve dysfunction that required further investigation and a new valve replacement even though the preoperative imaging was normal.
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    Intrasellar arachnoid cyst: A case report and review of the literature
    (ELSEVIER SCI LTD, 2016-01-01) Guduk, Mustafa; HamitAytar, Murat; Sav, Aydin; Berkman, Zafer
    INTRODUCTION: Arachnoid cysts (ACs) are frequently found on intracranial imaging studies but intrasellar arachnoid cysts are rarely encountered. PRESENTATION OF CASE: We present a 49-year old patient who had headaches for 6 months and cystic sellar mass was found in his cranial imaging. We operated him by transnasal transsphenoidal route. Our intraoperative diagnosis was an arachnoid cyst and pathologic studies verified our observation. He did well postoperatively and after a 1 year follow-up he was left free from future follow-ups. DISCUSSION: As common cystic lesions occupying the sellar region can simulate ACs both clinically and radiologically, neurosurgeon can fail to include ACs in making the initial diagnosis preoperatively. CONCLUSION: Although a rare entity, arachnoid cysts should be considered in the differential diagnosis of sellar region. (C) 2016 Published by Elsevier Ltd on behalf of IJS Publishing Group Ltd.